class Post < ActiveRecord::Base
  validates :name, :presence => true
  validates :title, :presence => true, :length => {:minimum => 5}
  has_many :comments, :dependent => :destroy
  has_many :tags

  accepts_nested_attributes_for :tags, :allow_destroy => true,
    :reject_if => proc {|attrs| attrs.all? { |k, v| v.blank?}}
end
